EN ISO 22081:2021

SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 22768-2:2000
Specifikacija geometrijskih veličin izdelka (GPS) - Geometrijsko toleriranje -
Splošne geometrijske specifikacije in splošne specifikacije velikosti (ISO
22081:2021)
Geometrical product specifications (GPS) - Geometrical tolerancing - General
geometrical specifications and general size specifications (ISO 22081:2021)
Geometrische Produktspezifikation (GPS) - Geometrische Tolerierung - Allgemeine
geometrische und Maßspezifikationen (ISO 22081:2021)
Spécification géométrique des produits (GPS) - Tolérancement géométrique -
Spécifications géométriques générales et spécifications de taille générales (ISO
22081:2021)
Ta slovenski standard je istoveten z: EN ISO 22081:2021
ICS:
17.040.40 Specifikacija geometrijskih Geometrical Product
veličin izdelka (GPS) Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22081
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2021
EUROPÄISCHE NORM
ICS 17.040.40 Supersedes EN 22768-2:1993
English Version
Geometrical product specifications (GPS) - Geometrical
tolerancing - General geometrical specifications and
general size specifications (ISO 22081:2021)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) -
Tolérancement géométrique - Spécifications Geometrische Tolerierung - Allgemeine geometrische
géométriques générales et spécifications de taille und Maßspezifikationen (ISO 22081:2021)
générales (ISO 22081:2021)
This European Standard was approved by CEN on 21 January 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22081:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 22081:2021) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the
secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2021, and conflicting national standards shall
be withdrawn at the latest by August 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 22768-2:1993.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 22081:2021 has been approved by CEN as EN ISO 22081:2021 without any modification.

INTERNATIONAL ISO
STANDARD 22081
First edition
2021-02
Geometrical product specifications
(GPS) — Geometrical tolerancing —
General geometrical specifications
and general size specifications
Spécification géométrique des produits (GPS) — Tolérancement
géométrique — Spécifications géométriques générales et
spécifications de taille générales
Reference number
ISO 22081:2021(E)
©
ISO 2021
ISO 22081:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 22081:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Basic principles . 2
4.1 General . 2
4.2 Basic rule . 2
4.3 Indication in a technical product documentation (TPD) . 3
5 General geometrical specification . 3
5.1 Rule for indicating the general geometrical specification . 3
5.2 Rule for the applicability of the general geometrical specification . 4
5.3 Rules for the datum system . 6
6 General size specifications . 7
6.1 Rule for indicating general size specifications . 7
6.2 Rule for the applicability of general size specifications . 7
Annex A (informative) Example of indication with reference to a table in the TPD .9
Annex B (informative) Examples .10
Annex C (informative) Relation to the GPS matrix model .13
Bibliography .14
ISO 22081:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 290, Dimensional and geometrical product specification and verification, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This first edition cancels and replaces ISO 2768-2:1989, which has been technically revised.
The main changes to ISO 2768-2:1989 are as follows:
— tools have been added to specify a general geometrical specification and a general size specification;
— the rules for application of general geometrical specification and general size specification have
been clarified.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

ISO 22081:2021(E)
Introduction
This document is a geometrical product specification (GPS) standard and is to be regarded as a general
GPS standard (see ISO 14638). It influences chain links A, B and C of the chain of standards on size,
distance, form, orientation and location.
The ISO/GPS matrix model given in ISO 14638 gives an overview of the ISO/GPS system of which this
document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and
the default decision rules given in ISO 14253-1 apply to the specifications made in accordance with this
document, unless otherwise indicated.
For more detailed information of the relation of this document to other standards and the GPS matrix
model, see Annex C.
This document deals with general geometrical specification and general size specifications, which can
be used to reduce the number of individual specification indications in technical product documentation
(TPD). Many geometrical features have individual specifications which are similar or identical. As an
alternative, general geometrical specifications, general size specifications or both may be applied.
All figures in this document for the 2D drawing indications have been drawn in first-angle projection
with dimensions and tolerances in millimetres. It should be understood that third-angle projection
and other units of measurement could have been used equally well without prejudice to the
...